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• Journal of Astronomy and Space Sciences
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• 1992

Observed spectra of the long period eclipsing binary VV Cephei show emission features of Balmer and some ionized metal lines. These features were interpreted as the result of the extended envelope activity surrounding the secondary star. Radial velocities and equivalent widths were calculated from some metal lines.

• Bulletin of the Korean Space Science Society
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• 2007.10a
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• 2007

• Bulletin of the Korean Space Science Society
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• 2007

• Bulletin of the Korean Space Science Society
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• Proceedings of the Korean Society of Applied Entomolohy Conference
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• 2002.11a
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• 2002

• The Magazine of the IEIE
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• 2002

• Proceedings of the Korean Society of Applied Entomolohy Conference
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• 2000.05a
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• 2000

• 대한생식의학회:학술대회논문집
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• Proceedings of the Korean Vacuum Society Conference
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• 2002